Eugene Siegel 7556402ea4
peer: send reestablish, shutdown messages before starting writeHandler
This is to avoid a potential race on WriteMessage and Flush internals.
Because there is no locking on WriteMessage and Flush, if we allow
writeMessage calls in Start after the writeHandler has started,
the writeMessage calls may call WriteMessage/Flush at the same time
that writeMessage calls from the writeHandler does. Since there is
no locking, internals like b.nextHeaderSend can race and cause
panics.
2023-11-16 12:07:10 -05:00
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